<template>
  <div class="user">
    <div class="user_top">
      <img :src="avatar" width="70" alt="" />
      <h3 v-if="ifLogined">{{ username }}</h3>
      <h3 @click="ifShowModal = true" v-else>点击登录</h3>
      <van-icon :name="ifLogined ? 'cross' : 'arrow'" @click="loginout" />
    </div>
    <van-grid square :column-num="3">
      <van-grid-item
        v-for="item in gridArr"
        :key="item.id"
        :icon="item.icon"
        :text="item.type"
      />
    </van-grid>
    <div class="modal" v-show="ifShowModal">
      <div class="modal_bg" @click="ifShowModal = false"></div>
      <div class="modal_content">
        <van-form @submit="onSubmit">
          <van-field
            v-model="username"
            name="用户名"
            label="用户名"
            placeholder="用户名"
            :rules="[{ required: true, message: '请填写用户名' }]"
          />
          <van-field
            v-model="password"
            type="password"
            name="密码"
            label="密码"
            placeholder="密码"
            :rules="[{ required: true, message: '请填写密码' }]"
          />
          <div style="margin: 16px">
            <van-button round block type="danger" native-type="submit"
              >提交</van-button
            >
          </div>
        </van-form>
      </div>
    </div>
  </div>
</template>
 
<script>
export default {
  data() {
    return {
      // 头像
      avatar: require("../assets/images/audition.png"),
      // grid数组
      gridArr: [
        { id: 3, icon: "location-o", type: "我的收藏" },
        { id: 6, icon: "aim", type: "听课记录" },
        { id: 7, icon: "warn-o", type: "账号安全" },
        { id: 8, icon: "service-o", type: "联系客服" },
        { id: 9, icon: "question-o", type: "帮助中心" },
        { id: 10, icon: "smile-comment-o", type: "意见反馈" },
      ],
      // 用户名：
      username: "wuyanzu",
      // 密码：
      password: "123456789",
      // 模态框
      ifShowModal: false,
      // 判断是否已经登录
      ifLogined: false,
    };
  },
  created() {
    // 判断localStorage中是否有token
    let token = localStorage.getItem("X-Nideshop-Token");
    if (token) {
      // 有token证明已经登录
      this.ifLogined = true;
      let userInfo = JSON.parse(localStorage.getItem("userInfo"));
      // 修改avatar和username
      this.avatar = userInfo.avatar;
      this.username = userInfo.username;
    }
  },
  methods: {
    onSubmit() {
      // console.log(values);  // {用户名: "admin", 密码: "123456"}

          // 关闭模态框
          this.ifShowModal = false;
          // 修改为已经登录
          this.ifLogined = true;
    },
    // 登出
    loginout() {
      if (this.ifLogined) {
        this.$dialog
          .confirm({
            title: "登出账号确认",
            message: "您是否想要退出当前账号？",
          })
          .then(() => {
            // 清除token
            localStorage.removeItem("X-Nideshop-Token");
            // 刷新当前页
            this.$router.go(0);
          });
      } else {
        // 代表未登录，要打开模态框
        this.ifShowModal = true;
      }
    },
  },
};
</script>
 
<style lang = "less" scoped>
.user {
  .user_top {
    background: #333;
    color: #fff;
    padding: 20px 10px;
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    img {
      border-radius: 50%;
      margin-right: 10px;
    }
    h3 {
      flex: 1;
    }
  }

  .modal {
    width: 100%;
    height: 100%;
    position: fixed;
    z-index: 99;
    left: 0;
    top: 0;
    .modal_bg {
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.5);
    }
    .modal_content {
      width: 90%;
      height: 200px;
      position: absolute;
      background: #fff;
      left: 0;
      top: 0;
      right: 0;
      bottom: 0;
      margin: auto;
      padding-top: 40px;
    }
  }
}
</style>